Pure barium cerate and its doped samples with different concentrations of zinc (BaCe1-xZnxO3) with x = 0.
To understand the electrocatalytic behavior of barium cerate and its analogues, study of kinetic and thermodynamic parameters is important which was done in the present scheme of work.
Synthesis process of pure BaCeO3 nanoparticles and zinc doped barium cerate (BaCe1- xZnxO3) powders is shown in scheme 1.
The BaCeO3 and zinc doped barium cerate powders are coded as shown in Table-2.
02) were single perovskite phases and iso- structural to pure barium cerate indicating entrance of zinc into lattice instead of accumulation into the grain boundaries .
14 showed similar FTIR spectra as that of minimum zinc doped barium cerate.
Overall redox processes seemed to be diffusion controlled and facilitated due to the proton conducting nature of doped or undoped barium cerate materials [6, 7].
The temperature variation in low temperature range under the given set of experimental conditions, again hints clearly towards the effectiveness of the barium cerate materials for PEMFC applications.
Barium cerate and zinc doped barium cerates of different zinc contents were prepared by co-precipitation method and investigated by using XRD, SEM, FTIR techniques and catalytic activity towards methanol oxidation in acidic medium was done by using cyclic voltammetry.
Slade, Variations in Ionic Conductivity of Calcium-Doped Barium Cerate Ceramic Electrolytes in Different Atmospheres, Solid State Ionics, 77, 215 (1995).